What is the maximum energy that can be stored in a capacitor?
Correct answer: C. Depends on the maximum electric field the dielectric can withstand
- A. Depends on the maximum surface area of the capacitor plates
- B. Depends on the maximum resistance offered by the circuit
- C. Depends on the maximum electric field the dielectric can withstand
- D. Depends on the maximum current passing through the capacitor
Explanation
The maximum energy that can be stored in a capacitor depends on the maximum electric field that the dielectric material can withstand without breakdown. This is because the electric field strength limits the amount of charge the capacitor can hold before the dielectric fails. Capacitors of the same type typically have similar maximum energy densities, measured in joules per cubic meter. Other factors, such as plate area or resistance, do not directly limit the maximum energy storage capacity of the capacitor, although they might affect other parameters like charge or discharge rates.
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About Electrostatics
Electrostatics describes forces between charges through Coulomb's law, electric fields and field intensity, then uses electric potential to measure energy per unit charge. Capacitors store charge and electrical energy, with capacitance depending on geometry and dielectric material, not simply on the amount of charge present.
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